期刊
JOURNAL OF OPTICS
卷 15, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/15/3/035403
关键词
photon; qubit; angular momentum; atom; matrix element
类别
资金
- NSF [PHY-1005709, PHY-1205788]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1005709, 1205788] Funding Source: National Science Foundation
We obtain an expression for the matrix element for scattering of a twisted (Laguerre-Gaussian profile) photon from a hydrogen atom. We consider photons incoming with an orbital angular momentum (OAM) of l (h) over bar, carried by a factor of e(il phi) not present in a plane-wave or pure Gaussian profile beam. The nature of the transfer of +2l units of OAM from the photon to the azimuthal atomic quantum number of the atom is investigated. We obtain simple formulas for these OAM flip transitions for elastic forward scattering of twisted photons when the photon wavelength lambda is large compared with the atomic target size a, and small compared with the Rayleigh range z(R), which characterizes the collimation length of the twisted photon beam.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据